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Annotation of Gnu-Mach/linux/src/include/net/udp.h, revision 1.1.1.1

1.1       root        1: /*
                      2:  * INET                An implementation of the TCP/IP protocol suite for the LINUX
                      3:  *             operating system.  INET is implemented using the  BSD Socket
                      4:  *             interface as the means of communication with the user level.
                      5:  *
                      6:  *             Definitions for the UDP module.
                      7:  *
                      8:  * Version:    @(#)udp.h       1.0.2   05/07/93
                      9:  *
                     10:  * Authors:    Ross Biro, <[email protected]>
                     11:  *             Fred N. van Kempen, <[email protected]>
                     12:  *
                     13:  * Fixes:
                     14:  *             Alan Cox        : Turned on udp checksums. I don't want to
                     15:  *                               chase 'memory corruption' bugs that aren't!
                     16:  *
                     17:  *             This program is free software; you can redistribute it and/or
                     18:  *             modify it under the terms of the GNU General Public License
                     19:  *             as published by the Free Software Foundation; either version
                     20:  *             2 of the License, or (at your option) any later version.
                     21:  */
                     22: #ifndef _UDP_H
                     23: #define _UDP_H
                     24: 
                     25: #include <linux/udp.h>
                     26: 
                     27: #define UDP_HTABLE_SIZE                128
                     28: 
                     29: /* udp.c: This needs to be shared by v4 and v6 because the lookup
                     30:  *        and hashing code needs to work with different AF's yet
                     31:  *        the port space is shared.
                     32:  */
                     33: extern struct sock *udp_hash[UDP_HTABLE_SIZE];
                     34: 
                     35: extern unsigned short udp_good_socknum(void);
                     36: 
                     37: #define UDP_NO_CHECK   0
                     38: 
                     39: 
                     40: extern struct proto udp_prot;
                     41: 
                     42: 
                     43: extern void    udp_err(int type, int code, unsigned char *header, __u32 daddr,
                     44:                        __u32 saddr, struct inet_protocol *protocol, int len);
                     45: extern void    udp_send_check(struct udphdr *uh, __u32 saddr, 
                     46:                        __u32 daddr, int len, struct sock *sk);
                     47: extern int     udp_recvfrom(struct sock *sk, unsigned char *to,
                     48:                             int len, int noblock, unsigned flags,
                     49:                             struct sockaddr_in *sin, int *addr_len);
                     50: extern int     udp_read(struct sock *sk, unsigned char *buff,
                     51:                         int len, int noblock, unsigned flags);
                     52: extern int     udp_connect(struct sock *sk,
                     53:                            struct sockaddr_in *usin, int addr_len);
                     54: extern int     udp_rcv(struct sk_buff *skb, struct device *dev,
                     55:                        struct options *opt, __u32 daddr,
                     56:                        unsigned short len, __u32 saddr, int redo,
                     57:                        struct inet_protocol *protocol);
                     58: extern int     udp_ioctl(struct sock *sk, int cmd, unsigned long arg);
                     59: 
                     60: /* CONFIG_IP_TRANSPARENT_PROXY */
                     61: extern int     udp_chkaddr(struct sk_buff *skb);
                     62: 
                     63: #endif /* _UDP_H */

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